Discussion related to cado-nfs

[Zimmermann Paul <Paul.Zimmermann@inria.fr>]

       Paul,

> From: Paul Leyland <paul.leyland@gmail.com>
> Date: Thu, 04 Apr 2013 17:51:39 +0100
> 
> I'm running the latest git repository version of CADO-NFS on a c147 and
> was wondering why I never had enough relations.  As I'm a complete newby
> I may genuinely not have enough, but I also have lines like this in
> purge.log
> 
> pcl@maat ~/cado-nfs/test $ cat tmp/c147.purge.log
> /home/pcl/cado-nfs-1.1/build/maat/filter/purge.ra55366a
> -poly ./tmp//c147.poly -keep 160 -nrels 38129246
> -out ./tmp//c147.purged.gz -npthr 2x2 -basepath ./tmp/
> -subdirlist ./tmp//c147.subdirlist -filelist ./tmp//c147.filelist
> Warning: unused command-line parameter npthr
> Usage: purge [options] -poly polyfile -out purgedfile -nrels nnn
> [-basepath <path>] [-subdirlist <sl>] [-filelist <fl>] file1 ... filen
> Options:
>        -excess  nnn - initial excess (default 1.01)
>        -keep    nnn - prune if excess > nnn (default 160)
>        -minpa   nnn - purge alg. primes >= nnn (default alim)
>        -minpr   nnn - purge rat. primes >= nnn (default rlim)
>        -nprimes nnn - expected number of prime ideals
>        -sos sosfile - to keep track of the renumbering
>        -raw         - output relations in CADO format
> 
> 
> Should I be worried?
> 
> Should I let the run continue or should I interrupt it and try to
> recover somehow?
> 
> Right now there are "Info:Running total: 47706267 relations." which is
> plausibly large enough to complete the factorization.
> 
> The factorization was started with
> 
> ../cadofactor.pl params=../params/params.c147 wdir=./tmp/ name=c147 n=`cat 
> num.n`
> 
> and, of course, num.n contains a single line containing 147 decimal digits
> 
> Thanks,
>       Paul

I hope the issue is fixed on your side now.

Anyway we will change our code so that when an error occurs in purge,
the factorization is aborted, to avoid it runs forever as you experienced.

Paul (the other one)